Market regulation · 01/11/2011

C2 Options Exchange Proposes Closing Trading at 3 p.m. Chicago Time on Last Day of Expiring S&P 500 Options

The C2 Options Exchange, Incorporated, has filed a proposed rule change to close trading at 3 p.m. Chicago Time on the last day of trading for expiring P.M.-settled S&P 500 options, as per the notice.